Circadian Rhythms and Acute Coronary Syndrome in the Elderly
Clemencia de Rueda1, Pablo Díez-Villanueva1, Clara Bonanad2
1Cardiology Department, Hospital Universitario de La Princesa, 28006 Madrid, Spain.
Insights
Acute cardiac events, particularly ischemic heart disease, peak in the morning. Elderly patients show increased morning risk for acute coronary events, highlighting age-related circadian pattern differences.
Area of Science:
- Cardiology
- Chronobiology
- Geriatrics
Background:
- Ischemic heart disease is a leading cause of death globally, with incidence and mortality rising with age.
- Circadian rhythms influence cardiovascular physiology, but can exacerbate risks in susceptible individuals.
- Acute cardiovascular events exhibit a circadian pattern, often peaking in the morning hours.
Purpose of the Study:
- To investigate the role of circadian rhythms in acute cardiac events.
- To explore age-related differences in circadian patterns of acute coronary syndromes.
- To understand the increased morning risk observed in elderly patients.
Main Methods:
- Analysis of circadian patterns in acute cardiac events.
- Comparison of event occurrence across different age groups.
- Examination of morning peak incidence in elderly populations.
Main Results:
- Acute cardiac events, including ischemic heart disease, demonstrate a circadian pattern with a morning peak.
- Elderly patients exhibit a heightened risk for acute coronary events, particularly in the morning.
- A bimodal distribution of events has also been noted in older individuals.
Conclusions:
- Circadian rhythms play a significant role in the timing of acute cardiovascular events.
- Age influences circadian patterns of acute coronary syndromes, with elderly patients facing increased morning risks.
- Further research is needed to fully elucidate age-specific circadian variations in cardiovascular events.
Abstract:
Ischemic heart disease is the leading cause of death in Western countries. The incidence, prevalence and mortality rate of acute cardiac events increase with age. Circadian rhythms allow organisms to prepare for their daily fluctuations brought on by day-night cycles, thus playing an important role in the cardiovascular physiology. This can be sometimes a double-edged sword, since exaggerated responses may not be beneficial or may be even harmful in individuals susceptible to adverse acute cardiovascular events. Remarkably, occurrence of such events has been related to a circadian pattern with a peak in the morning hours. Of interest, elderly patients seem to have an increased risk of acute coronary events, especially in the morning, though a bimodal distribution has also been observed. Further studies are required to get more insights on age-related differential circadian patterns in acute coronary syndromes patients.
Related Concept Videos
01:15Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...
01:30Acute Coronary Syndrome I: Introduction
01:19Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations
01:30Acute Coronary Syndrome III: Diagnostic Studies
01:26Acute Coronary Syndrome V: Nursing Management
02:19Circadian Rhythms and Gene Regulation